1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/gc_implementation/parallelScavenge/psGCAdaptivePolicyCounters.hpp Sat Dec 01 00:00:00 2007 +0000
1.3 @@ -0,0 +1,194 @@
1.4 +/*
1.5 + * Copyright 2003-2005 Sun Microsystems, Inc. All Rights Reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
1.23 + * CA 95054 USA or visit www.sun.com if you need additional information or
1.24 + * have any questions.
1.25 + *
1.26 + */
1.27 +
1.28 +// PSGCAdaptivePolicyCounters is a holder class for performance counters
1.29 +// that track the data and decisions for the ergonomics policy for the
1.30 +// parallel scavenge collector.
1.31 +
1.32 +class PSGCAdaptivePolicyCounters : public GCAdaptivePolicyCounters {
1.33 + friend class VMStructs;
1.34 +
1.35 + private:
1.36 + // survivor space vs. tenuring threshold
1.37 + PerfVariable* _old_promo_size;
1.38 + PerfVariable* _old_eden_size;
1.39 + PerfVariable* _avg_promoted_avg_counter;
1.40 + PerfVariable* _avg_promoted_dev_counter;
1.41 + PerfVariable* _avg_promoted_padded_avg_counter;
1.42 + PerfVariable* _avg_pretenured_padded_avg;
1.43 +
1.44 + // young gen vs. old gen sizing
1.45 + PerfVariable* _avg_major_pause;
1.46 + PerfVariable* _avg_major_interval;
1.47 + PerfVariable* _live_space;
1.48 + PerfVariable* _free_space;
1.49 + PerfVariable* _avg_base_footprint;
1.50 + PerfVariable* _gc_time_limit_exceeded;
1.51 + PerfVariable* _live_at_last_full_gc;
1.52 + PerfVariable* _old_capacity;
1.53 + PerfVariable* _boundary_moved;
1.54 +
1.55 + PerfVariable* _change_old_gen_for_min_pauses;
1.56 + PerfVariable* _change_young_gen_for_maj_pauses_counter;
1.57 +
1.58 + PerfVariable* _major_pause_old_slope;
1.59 + PerfVariable* _minor_pause_old_slope;
1.60 + PerfVariable* _major_pause_young_slope;
1.61 +
1.62 + PerfVariable* _scavenge_skipped;
1.63 + PerfVariable* _full_follows_scavenge;
1.64 +
1.65 + // Use this time stamp if the gc time stamp is not available.
1.66 + TimeStamp _counter_time_stamp;
1.67 +
1.68 + protected:
1.69 + PSAdaptiveSizePolicy* ps_size_policy() {
1.70 + return (PSAdaptiveSizePolicy*)_size_policy;
1.71 + }
1.72 +
1.73 + public:
1.74 + PSGCAdaptivePolicyCounters(const char* name, int collectors, int generations,
1.75 + PSAdaptiveSizePolicy* size_policy);
1.76 + inline void update_old_capacity(size_t size_in_bytes) {
1.77 + _old_capacity->set_value(size_in_bytes);
1.78 + }
1.79 + inline void update_old_eden_size(size_t old_size) {
1.80 + _old_eden_size->set_value(old_size);
1.81 + }
1.82 + inline void update_old_promo_size(size_t old_size) {
1.83 + _old_promo_size->set_value(old_size);
1.84 + }
1.85 + inline void update_boundary_moved(int size_in_bytes) {
1.86 + _boundary_moved->set_value(size_in_bytes);
1.87 + }
1.88 + inline void update_avg_promoted_avg() {
1.89 + _avg_promoted_avg_counter->set_value(
1.90 + (jlong)(ps_size_policy()->avg_promoted()->average())
1.91 + );
1.92 + }
1.93 + inline void update_avg_promoted_dev() {
1.94 + _avg_promoted_dev_counter->set_value(
1.95 + (jlong)(ps_size_policy()->avg_promoted()->deviation())
1.96 + );
1.97 + }
1.98 + inline void update_avg_promoted_padded_avg() {
1.99 + _avg_promoted_padded_avg_counter->set_value(
1.100 + (jlong)(ps_size_policy()->avg_promoted()->padded_average())
1.101 + );
1.102 + }
1.103 +
1.104 + inline void update_avg_pretenured_padded_avg() {
1.105 + _avg_pretenured_padded_avg->set_value(
1.106 + (jlong)(ps_size_policy()->_avg_pretenured->padded_average())
1.107 + );
1.108 + }
1.109 + inline void update_change_young_gen_for_maj_pauses() {
1.110 + _change_young_gen_for_maj_pauses_counter->set_value(
1.111 + ps_size_policy()->change_young_gen_for_maj_pauses());
1.112 + }
1.113 + inline void update_change_old_gen_for_min_pauses() {
1.114 + _change_old_gen_for_min_pauses->set_value(
1.115 + ps_size_policy()->change_old_gen_for_min_pauses());
1.116 + }
1.117 +
1.118 + // compute_generation_free_space() statistics
1.119 +
1.120 + inline void update_avg_major_pause() {
1.121 + _avg_major_pause->set_value(
1.122 + (jlong)(ps_size_policy()->_avg_major_pause->average() * 1000.0)
1.123 + );
1.124 + }
1.125 + inline void update_avg_major_interval() {
1.126 + _avg_major_interval->set_value(
1.127 + (jlong)(ps_size_policy()->_avg_major_interval->average() * 1000.0)
1.128 + );
1.129 + }
1.130 +
1.131 + inline void update_major_gc_cost_counter() {
1.132 + _major_gc_cost_counter->set_value(
1.133 + (jlong)(ps_size_policy()->major_gc_cost() * 100.0)
1.134 + );
1.135 + }
1.136 + inline void update_mutator_cost_counter() {
1.137 + _mutator_cost_counter->set_value(
1.138 + (jlong)(ps_size_policy()->mutator_cost() * 100.0)
1.139 + );
1.140 + }
1.141 +
1.142 + inline void update_live_space() {
1.143 + _live_space->set_value(ps_size_policy()->live_space());
1.144 + }
1.145 + inline void update_free_space() {
1.146 + _free_space->set_value(ps_size_policy()->free_space());
1.147 + }
1.148 +
1.149 + inline void update_avg_base_footprint() {
1.150 + _avg_base_footprint->set_value(
1.151 + (jlong)(ps_size_policy()->avg_base_footprint()->average())
1.152 + );
1.153 + }
1.154 + inline void update_avg_old_live() {
1.155 + _avg_old_live_counter->set_value(
1.156 + (jlong)(ps_size_policy()->avg_old_live()->average())
1.157 + );
1.158 + }
1.159 + // Scale up all the slopes
1.160 + inline void update_major_pause_old_slope() {
1.161 + _major_pause_old_slope->set_value(
1.162 + (jlong)(ps_size_policy()->major_pause_old_slope() * 1000)
1.163 + );
1.164 + }
1.165 + inline void update_minor_pause_old_slope() {
1.166 + _minor_pause_old_slope->set_value(
1.167 + (jlong)(ps_size_policy()->minor_pause_old_slope() * 1000)
1.168 + );
1.169 + }
1.170 + inline void update_major_pause_young_slope() {
1.171 + _major_pause_young_slope->set_value(
1.172 + (jlong)(ps_size_policy()->major_pause_young_slope() * 1000)
1.173 + );
1.174 + }
1.175 +
1.176 + inline void update_scavenge_skipped(int cause) {
1.177 + _scavenge_skipped->set_value(cause);
1.178 + }
1.179 +
1.180 + inline void update_full_follows_scavenge(int event) {
1.181 + _full_follows_scavenge->set_value(event);
1.182 + }
1.183 +
1.184 + // Update all the counters that can be updated from the size policy.
1.185 + // This should be called after all policy changes have been made
1.186 + // and reflected internall in the size policy.
1.187 + void update_counters_from_policy();
1.188 +
1.189 + // Update counters that can be updated from fields internal to the
1.190 + // counter or from globals. This is distinguished from counters
1.191 + // that are updated via input parameters.
1.192 + void update_counters();
1.193 +
1.194 + virtual GCPolicyCounters::Name kind() const {
1.195 + return GCPolicyCounters::PSGCAdaptivePolicyCountersKind;
1.196 + }
1.197 +};
